Running a business in London means juggling a lot: client meetings across the city, staff working from home some days and the office on others, and customers who expect to reach you quickly however they call. This business phone system in London gives your team a dependable way to handle every call, wherever they are that day.
Call 020 8159 1900 or contact our team to request a free quote today.
Missed calls cost you business, and a business phone system in London needs to catch every one of them, whether it’s a new enquiry or an existing client chasing an update.
Ours brings reliable call forwarding, voicemail sent straight to your inbox, and clear video conferencing, so nothing falls through the cracks while you’re focused on running things rather than answering the phone.
A cloud PBX, sometimes called a hosted PBX, strips out the cost of a traditional phone system, no on site hardware, no engineer call outs, and one straightforward monthly plan for lines, handsets and voicemail.
With teams split across a City office, a Canary Wharf desk and days worked from home, a phone system tied to one building stops making sense.
A cloud system follows your people rather than your postcode, so a call answered in Holborn on Monday can just as easily be taken from a spare room in Croydon on Friday, with no difference to the person calling in.
UCaaS stands for Unified Communications as a Service. It replaces separate phone systems, video platforms, and messaging tools with one cloud environment at a single monthly price per user. The unified communications London businesses benefit from most is a system that removes the cost of managing several independent subscriptions.
CCaaS stands for Contact Centre as a Service. It adds skills based routing, live wallboards, workforce management, and AI coaching on top of your core platform. Our system runs both on a single shared infrastructure, so voice, messaging, video, and contact centre interactions all share one analytics engine.
| Compare | UCaaS | CCaaS |
|---|---|---|
| Built for | Your whole team | Customer service and sales teams |
| Main job | Everyday calling, meetings and chat | Handling high volumes of customer contact |
| Typical tools | Business calling, video, messaging, voicemail to email | Call queues, skills based routing, wallboards, quality monitoring |
| Channels | Voice, video and chat | Voice plus email, web chat, SMS and social media |
| Reporting | Call activity and usage | Real time dashboards and agent performance |
| Ideal for | Offices, trades, retailers and professional firms | Support desks, booking lines and busy sales teams |
Every call is delivered in HD audio using the Opus codec, noticeably clearer than legacy system quality. Video conferencing comes with screen sharing, meeting recording, and joining through a browser so clients and colleagues connect from any device without installing additional software.
Persistent messaging channels cut out the scattered email threads and missed instant messages that slow teams down. Messages, files, and conversation history are searchable and sit alongside your calls on the same platform, so nothing important gets buried in someone’s inbox.
A visual console gives reception teams a clear screen for managing multiple inbound calls at once. Queue depth, agent presence, hold, transfer, and call park are all controllable from a single view.
Every call is transcribed in real time and a structured summary is produced automatically when it ends. Speech analytics surface sentiment trends, recurring customer questions, and agent performance patterns across your full call volume.
An AI virtual agent handles inbound calls at any hour without a human operator. It understands natural language, completes tasks such as appointment bookings and account queries, and passes the caller to a live agent with the full conversation context already transferred.
When a caller needs a specific person rather than the next available agent, Expert Connect routes the call based on account history, query topic, and current availability. A law firm in Holborn can connect a client directly to the right fee earner without the caller pressing through a phone menu.
The platform connects natively to Microsoft Teams and the business tools you already rely on, with CRM integration meaning a customer’s record is already on screen when they call. When the call ends, notes sync automatically.
When you call 020 8159 1900, you speak to a person who knows your account. No overseas call centres and no automated queues for billing or technical issues. The same team delivering business communications London organisations rely on has been doing so for over two decades..
For London businesses in financial services, legal, healthcare, and media, communication security is not optional. The platform holds ISO 27001, SOC 2 Type II and Cyber Essentials Plus certification, with TLS encryption running on every call. Read the NCSC guidance on Cyber Essentials Plus for the full detail.
The features available through your plan depend on the package that suits your business. Our team will confirm the right combination before you commit to anything.
Whatever stage you’re at with your current setup, our team can talk you through the right business phone system in London for your business. Call 020 8159 1900 or contact us online.
Every business phone system in London we supply includes full contact centre capability from day one. Whether you run a small service desk in London city centre or an energy business spanning several sites across the south of England, the tools are the same.
With over two decades of experience, your business is in the best hands to deliver your communications needs.
No more complicated setup or engineer callouts. Most systems are fully programmed and live within minutes of your order being confirmed.
Whether you are UK based or elsewhere in the world, our HD platform gives you a presence wherever you need it.
Every system goes live in five steps, managed entirely by our team. There is no engineer visit to your London premises and no disruption to your working day.
Step 1. Discovery Call
Your business phone system in London starts with a discovery call: your account manager covers your current setup, team size, sites across the city and the south of England, and the applications you rely on. Every question is asked at this stage so your configuration is complete before anything ships.
Step 2. Remote Build
Your system is configured and fully tested before delivery. Call routing, hunt groups, IVR menus, and integrations with Microsoft Teams and your other business applications are all working before your handsets leave the warehouse.
Step 3. Plug and Register
Phones arrive at your London premises fully registered. Plug them into your router and they come online immediately. No cabling and no disruption to your team.
Step 4. Your 020 Number Carries Across
Your existing 020 number transfers to the hosted platform with no break in inbound calls during business hours. The process takes 10 to 15 working days, managed by our team throughout.
Step 5. Your Team Is Live
Teams using the app are typically live within minutes. Desk phone users follow within the same working day. Every user receives a short onboarding guide covering calls, voicemail, and messaging.
Every business communicates differently, and London’s business population is about as varied as it gets. We work with financial and professional services firms in the City and Canary Wharf, where call recording and reliable uptime matter for compliance, and with legal practices around Holborn, where client confidentiality is non negotiable.
We also support creative, media and technology teams around Shoreditch and Farringdon, along with retail, hospitality and property businesses right across the capital, from the West End to Croydon.
Wherever your postcode, our team can have a business phone system live within minutes of your order being confirmed. If your business needs a hand with connectivity too, we supply fibre broadband and leased lines to match, so your calls and your internet come from one team rather than two.
Blake Telecom has supplied business communications for more than twenty years, and London businesses tell us they want two things above all else: a system that just works, and a team who picks up when you call.
Our VoIP phone system in London can typically be up and running quickly, with UK based support throughout. The platform behind our business phone systems has been recognised 14 times in the Gartner Magic Quadrant for Unified Communications as a Service.
Every plan includes 30 day hot storage call recording, CRM integration and native Microsoft Teams support, so calls get answered fast. Our specialists can talk you through what fits your business phone system in London best.
London businesses range from a two person consultancy to a multi site enterprise, and our pricing scales the same way for all of them, with no hidden charges once you have signed up. Plan options vary by business size, and your account manager will confirm exactly what suits you before anything is agreed.
Contact our team for a same day pricing conversation, or call 020 8159 1900.
We want every client to have the best possible experience with us, both in the quality of what we provide and in the service you receive as an existing customer.
That’s why we never charge for handset maintenance. As long as you have bought the handset from ourselves, and your handset model is still supported, you’ll get free software updates and a lifetime manufacturer’s warranty on it.
Please contact us for a list of supported models.
Every user can make and receive calls on their London business number from anywhere, using the free mobile and desktop apps. Outbound calls display your 020 number whether you are calling from the office, home, or overseas.
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For over two decades, we’ve supported businesses through changes in technology, changes in the way people work, and now the move away from traditional landlines altogether. That consistency matters when you’re choosing who looks after something as basic as your phone line,
You’re not just buying a system, you’re choosing a team who will still be answering the phone when something needs sorting five years from now.
Every customer gets the same proactive approach, we catch issues before they become problems, and if you’re moving your existing number across as part of the switch, that’s handled for you too. We support businesses the same way right across the UK, including our teams in Leeds, Bradford and Aberdeen.
The PSTN switch off is Openreach’s retirement of the UK’s copper telephone network, scheduled for 31 January 2027, and London’s older commercial buildings are more exposed than most.
Many City and West End offices still rely on analogue lines for far more than phone calls: lift emergency phones, door entry systems, alarm panels and even some card payment terminals in older units often run over the same copper network as the desk phone.
When the switch off happens, all of it stops working at once unless it has already been migrated.
We handle this as a single, planned move rather than a last minute scramble. Your phone numbers transfer across, your lift and alarm lines get assessed and migrated where needed, and your team keeps working throughout, typically with no more than a short, scheduled changeover window.
Businesses in listed or older buildings across the City, Holborn and the West End should start this conversation now, availability for migrations before 2027 is tightening as the deadline gets closer.
Fixed lines, hardware on your premises
✕ Tied to a physical line at one address
✕ Standard call audio only
✕ No mobile or desktop apps
✕ Video calling needs a separate tool
✕ No transcription or AI features
✕ Adding users means an engineer visit
Ageing hardware, rising maintenance
Hosted over broadband, any device
✓ Works anywhere with a connection
✓ HD voice on every call
✓ iPhone, Android, PC and Mac apps
✓ Video meetings built in
✓ AI call transcription included
✓ Add users the same day, online
Reliable uptime with proactive monitoring
Director
Moving to rural office space, without the benefits of reasonable broadband speed, and without telephony services include, Blake Telecom directed us to alternatives and the solution we have is excellent. 4G Wi-Fi VoIP, serving our current needs and situation perfectly. The team were succinct in his explanation of what we could achieve, providing something promptly and getting this set up with minimum fuss and delay.
Director
Blake Telecom have been supplying our business communications for well over 10 years. We have found both their systems and support to be fully robust and they have given an excellent service throughout with value for money for their products. Their approach to helping our business has always been excellent from every aspect and I would highly recommend their services
Director
Blake Telecom have revolutionised the way we operate.They have gone the extra mile in making the setup process painless and it was easy to install. Any questions are dealt with quickly and efficiently, and the staff are a pleasure to deal with. I truly wish we found them years ago. We recommend Blake Telecom to many of our suppliers and even customers whenever we can.
Director
Get in touch to discuss a telephone system built around how your London business actually operates, your people, your sites and the way customers reach you.
• Cloud hosted telephone systems for London
• Keep your existing 020 number where porting is possible
• Office, remote and mobile working options
• Call routing, queues and auto attendant
• Call recording available
• Microsoft Teams integration available
• Business broadband London companies rely on
• UK-based business telecoms support
If you have any questions that are not answered here, then either check out our helpful blog or contact us for further advice.
Ready to upgrade your business phone system in London? Contact us for a free quote, or call 020 8159 1900 to speak with the team directly.
Author: Glenda Jackson. Last Reviewed: 04/08/2026
Set up your new VoIP phone system, fully working today, including a new number and programming.
Blake Telecom have been paramount to the growth of our business by continuing to offer our business the very highest level of service. The equipment we have been supplied has been extremely flexible allowing us to change needs. Blake Telecom's knowledge and expertise has been very professional and we look forward to working together on our future projects.